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Photo by Callie Hernandez for KUT News.

Nationally, gas prices are hovering around $3 a gallon these days. It’s far off the record price of more than $4.10 in the summer of 2008. Remember those days? Well, what about $5 dollar, even $10 dollar a gallon for gas?

To understand the rest of this story, you need to get one concept: peak oil.

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